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use crate::{ props::Props, widget::{ node::{WidgetNode, WidgetNodePrefab}, unit::{WidgetUnit, WidgetUnitData}, utils::{Rect, Transform}, WidgetId, }, PrefabValue, PropsData, Scalar, }; use serde::{Deserialize, Serialize}; use std::convert::TryFrom; #[derive(PropsData, Debug, Clone, Serialize, Deserialize)] #[props_data(crate::props::PropsData)] #[prefab(crate::Prefab)] pub struct FlexBoxItemLayout { #[serde(default)] #[serde(skip_serializing_if = "Option::is_none")] pub basis: Option<Scalar>, #[serde(default = "FlexBoxItemLayout::default_fill")] pub fill: Scalar, #[serde(default = "FlexBoxItemLayout::default_grow")] pub grow: Scalar, #[serde(default = "FlexBoxItemLayout::default_shrink")] pub shrink: Scalar, #[serde(default)] pub margin: Rect, #[serde(default)] pub align: Scalar, } impl FlexBoxItemLayout { fn default_fill() -> Scalar { 1.0 } fn default_grow() -> Scalar { 1.0 } fn default_shrink() -> Scalar { 1.0 } } impl Default for FlexBoxItemLayout { fn default() -> Self { Self { basis: None, fill: Self::default_fill(), grow: Self::default_grow(), shrink: Self::default_shrink(), margin: Default::default(), align: 0.0, } } } #[derive(Debug, Default, Clone, Serialize, Deserialize)] pub struct FlexBoxItem { #[serde(default)] pub slot: WidgetUnit, #[serde(default)] pub layout: FlexBoxItemLayout, } impl TryFrom<FlexBoxItemNode> for FlexBoxItem { type Error = (); fn try_from(node: FlexBoxItemNode) -> Result<Self, Self::Error> { let FlexBoxItemNode { slot, layout } = node; Ok(Self { slot: WidgetUnit::try_from(slot)?, layout, }) } } #[derive(Debug, Default, Clone)] pub struct FlexBoxItemNode { pub slot: WidgetNode, pub layout: FlexBoxItemLayout, } #[derive(Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize)] pub enum FlexBoxDirection { HorizontalLeftToRight, HorizontalRightToLeft, VerticalTopToBottom, VerticalBottomToTop, } impl Default for FlexBoxDirection { fn default() -> Self { Self::HorizontalLeftToRight } } impl FlexBoxDirection { pub fn is_horizontal(&self) -> bool { *self == Self::HorizontalLeftToRight || *self == Self::HorizontalRightToLeft } pub fn is_vertical(&self) -> bool { *self == Self::VerticalTopToBottom || *self == Self::VerticalBottomToTop } pub fn is_order_ascending(&self) -> bool { *self == Self::HorizontalLeftToRight || *self == Self::VerticalTopToBottom } pub fn is_order_descending(&self) -> bool { *self == Self::HorizontalRightToLeft || *self == Self::VerticalBottomToTop } } #[derive(Debug, Default, Clone, Serialize, Deserialize)] pub struct FlexBox { #[serde(default)] pub id: WidgetId, #[serde(default)] #[serde(skip_serializing_if = "Vec::is_empty")] pub items: Vec<FlexBoxItem>, #[serde(default)] pub direction: FlexBoxDirection, #[serde(default)] pub separation: Scalar, #[serde(default)] pub wrap: bool, #[serde(default)] pub transform: Transform, } impl WidgetUnitData for FlexBox { fn id(&self) -> &WidgetId { &self.id } fn get_children(&self) -> Vec<&WidgetUnit> { self.items.iter().map(|item| &item.slot).collect() } } impl TryFrom<FlexBoxNode> for FlexBox { type Error = (); fn try_from(node: FlexBoxNode) -> Result<Self, Self::Error> { let FlexBoxNode { id, items, direction, separation, wrap, transform, .. } = node; let items = items .into_iter() .map(FlexBoxItem::try_from) .collect::<Result<_, _>>()?; Ok(Self { id, items, direction, separation, wrap, transform, }) } } #[derive(Debug, Default, Clone)] pub struct FlexBoxNode { pub id: WidgetId, pub props: Props, pub items: Vec<FlexBoxItemNode>, pub direction: FlexBoxDirection, pub separation: Scalar, pub wrap: bool, pub transform: Transform, } impl FlexBoxNode { pub fn remap_props<F>(&mut self, mut f: F) where F: FnMut(Props) -> Props, { let props = std::mem::take(&mut self.props); self.props = (f)(props); } } impl From<FlexBoxNode> for WidgetNode { fn from(data: FlexBoxNode) -> Self { Self::Unit(data.into()) } } #[derive(Debug, Default, Clone, Serialize, Deserialize)] pub(crate) struct FlexBoxNodePrefab { #[serde(default)] pub id: WidgetId, #[serde(default)] pub props: PrefabValue, #[serde(default)] #[serde(skip_serializing_if = "Vec::is_empty")] pub items: Vec<FlexBoxItemNodePrefab>, #[serde(default)] pub direction: FlexBoxDirection, #[serde(default)] pub separation: Scalar, #[serde(default)] pub wrap: bool, #[serde(default)] pub transform: Transform, } #[derive(Debug, Default, Clone, Serialize, Deserialize)] pub(crate) struct FlexBoxItemNodePrefab { #[serde(default)] pub slot: WidgetNodePrefab, #[serde(default)] pub layout: FlexBoxItemLayout, }